采用酯交换-缩合聚合法合成了一种以聚乙二醇(PEG)或三缩四乙二醇(TTEG)为第四单体的易水解聚酯(EHDPET)，考察了单体配比对聚合物的结构、热性能、分子量及水解性的影响。结果表明提高第四单体的组分含量可提高易水解聚酯的水解性能；并且水解温度越高，水解溶液浓度越大，其水解速率越快；第四单体为PEG的样品水解性优于第四单体为TTEG的样品。
The easy hydrolytic degradable polyesters which used Polyethylene glycol (PEG)or tetraethylene gly-col (TTEG)as the fourth monomer were synthesized by ester exchange-esterification polycondensation method. The molecular structure,molecular weight and thermal properties of synthesized polymers were studied.The results showed that increase the fourth monomer can improve hydrolysis properties of polyesters.Furthermore, it was found that high temperature and basic concentration can accelerate the hydrolyzing rate.The hydrolysis property of samples with PEG are better than that with TTEG.
参考文献
| [1] | Wendy Loyens;Gabriel Groeninckx.Ultimate mechanical properties of rubber toughened semicrystalline PET at room temperature[J].Polymer: The International Journal for the Science and Technology of Polymers,200221(21):5679-5691. |
| [2] | 陆慧良.吸湿排汗用共聚酯切片的工业化开发[J].聚酯工业,2012(02):1-4. |
| [3] | 顾进;李晔;沈莉莉.碱溶性聚酯及其在合纤新材料中的应用[J].合成纤维,2009(7):1-4. |
| [4] | Chandrasekaran Vigneswaran;Natarajan Anbumani.Partial alkaline hydrolysis treatment on the physical characteristics of polyester rotor spun yarns[J].The Journal of the Textile Institute, Part 3. Technologies for a New Century,20112(2):140-149. |
| [5] | 刘俊姝;张大省;王锐;李晔.PTA法易水解聚酯的合成及水解性能[J].合成树脂及塑料,2003(3):5-8. |
| [6] | 张大省;李燕立;陈英;付中玉;王锐;李梅.Synthesis and Application of Easy Hydrolysis Degradable Polyester[J].东华大学学报(英文版),2001(3):24-27. |
| [7] | Kinart, CM;Klimczak, M;Kinart, WJ.Volumetric and dielectric characterization and analysis of internal structure of binary mixtures of 2-ethoxyethanol with ethylene glycol, diethylene glycol, triethylene glycol, and tetraethylene glycol at T=(293.15, 298.15 and 303.15) K[J].Journal of Molecular Liquids,20091(1):8-13. |
| [8] | 于维才;朱湘萍;郭静.水溶性聚酯合成及其溶解特性研究[J].聚酯工业,2013(3):18-20,58. |
| [9] | Hosseini SS;Taheri S;Zadhoush A;Mehrabani-Zeinabad A.Hydrolytic degradation of poly(ethylene terephthalate)[J].Journal of Applied Polymer Science,20074(4):2304-2309. |
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